The Bad Astronomer writes: "Climategate may be on its way out. An investigatory committee at the Pennsylvania State University has formally cleared climate scientist Dr. Michael Mann of any scientific misconduct. Mann was central in the so-called Climategate scandal, where illegally leaked emails were purported to indicate examples of scientists trying to cover up any lack of global warming in their data. This finding by the committee is another in a series of independent investigtions which have all concluded that no misconduct has occurred."